//要到apache公司下載poi3.1jar包
package excel;
import org.apache.poi.hssf.util.*;
import java.sql.*;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import org.apache.poi.hssf.usermodel.*;
//插入圖片需要導入的jar包
import java.awt.image.BufferedImage;
import java.io.ByteArrayOutputStream;
import java.net.URL;
import javax.imageio.ImageIO;
public class WriteExcel {
private Connection con=null;
public Connection getConnection(){
String ClssForName="com.microsoft.jdbc.sqlserver.SQLServerDriver";
String url="jdbc:microsoft:sqlserver://localhost:1433;DatabaseName=pubs";
if(con==null){
try{
Class.forName(ClssForName);
con=DriverManager.getConnection(url,"sa","");
} catch (ClassNotFoundException e) {
e.printStackTrace();
}catch(SQLException cone){
System.out.println(cone);
}
}
return con;
}
public static void main(String[] args)throws Exception {
Connection conn=null;
Statement st=null;
ResultSet rs=null;
int i=0;
String sql="select *from authors";
WriteExcel wr=new WriteExcel();
conn=wr.getConnection();
st=conn.createStatement();
rs=st.executeQuery(sql);
//聲明一個工作薄
HSSFWorkbook wb=new HSSFWorkbook();
//生成一個表格
HSSFSheet sheet=wb.createSheet("表格1");
//生成一個列
// HSSFRow row=sheet.createRow(0);
//生成一個樣式
HSSFCellStyle style=wb.createCellStyle();
//設置這些樣式
style.setFillForegroundColor(HSSFColor.SKY_BLUE.index);
style.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
style.setBorderBottom(HSSFCellStyle.BORDER_THIN);
style.setBorderLeft(HSSFCellStyle.BORDER_THIN);
style.setBorderRight(HSSFCellStyle.BORDER_THIN);
style.setBorderTop(HSSFCellStyle.BORDER_THIN);
style.setAlignment(HSSFCellStyle.ALIGN_CENTER);
//生成一個字體
HSSFFont font=wb.createFont();
font.setColor(HSSFColor.VIOLET.index);
font.setFontHeightInPoints((short)10);
font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
//把字體應用到當前的樣式
style.setFont(font);
//填充單元格
while(rs.next()){
HSSFRow row=sheet.createRow(i);
//聲明一個單元格
HSSFCell cell=row.createCell((short)0);
//設置單元格的字符值
cell.setCellValue(new HSSFRichTextString(rs.getString("au_id").toString()));
//設置單元格的樣式
cell.setCellStyle(style);
//設置第二列數值
HSSFCell au_lname=row.createCell((short)1);
au_lname.setCellValue(new HSSFRichTextString(rs.getString("au_lname")));
//設置第三列數值
HSSFCell au_fname=row.createCell((short)2);
au_fname.setCellValue(new HSSFRichTextString(rs.getString("au_fname")));
HSSFCell phone=row.createCell((short)3);
phone.setCellValue(new HSSFRichTextString(rs.getString("phone")));
HSSFCell address=row.createCell((short)4);
address.setCellValue(new HSSFRichTextString(rs.getString("address")));
i++;
}
FileOutputStream fout=new FileOutputStream("d://我的第一個EXCEL.xls");
//輸出到文件
wb.write(fout);
fout.close();
}
/**
* 插入圖片
* @throws Exception
*
*/
public void insertIMG() throws Exception{
//聲明一個工作薄
HSSFWorkbook wb=new HSSFWorkbook();
//生成一個表格
HSSFSheet sheet=wb.createSheet("表格1");
//生成一個列
HSSFRow row=sheet.createRow(0);
//生成一個樣式
HSSFCellStyle style=wb.createCellStyle();
//設置這些樣式
style.setFillForegroundColor(HSSFColor.SKY_BLUE.index);
style.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
style.setBorderBottom(HSSFCellStyle.BORDER_THIN);
style.setBorderLeft(HSSFCellStyle.BORDER_THIN);
style.setBorderRight(HSSFCellStyle.BORDER_THIN);
style.setBorderTop(HSSFCellStyle.BORDER_THIN);
style.setAlignment(HSSFCellStyle.ALIGN_CENTER);
//生成一個字體
HSSFFont font=wb.createFont();
font.setColor(HSSFColor.VIOLET.index);
font.setFontHeightInPoints((short)16);
font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
//把字體應用到當前的樣式
style.setFont(font);
//聲明一個畫圖的頂級管理器
HSSFPatriarch patriarch = sheet.createDrawingPatriarch();
//填充單元格
for(short i=0;i<5;i++){
//聲明一個單元格
HSSFCell cell=row.createCell(i);
switch(i){
case 0:
//設置普通文本
cell.setCellValue(new HSSFRichTextString("普通文本"));
break;
case 1:
//設置爲形狀
HSSFClientAnchor a1 = new HSSFClientAnchor( 0, 0, 1023, 255, (short) 1, 0, (short) 1, 0 );
HSSFSimpleShape shape1 = patriarch.createSimpleShape(a1);
//這裏可以設置形狀的樣式
shape1.setShapeType(HSSFSimpleShape.OBJECT_TYPE_OVAL);
break;
case 2:
//設置爲布爾量
cell.setCellValue(true);
break;
case 3:
//設置爲double值
cell.setCellValue(12.5);
break;
case 4:
//設置爲圖片]
// URL url=Test3.class.getResource("hello.jpg");
// insertImage(wb,patriarch,getImageData(ImageIO.read(url)),0,4,1);
break;
}
//設置單元格的樣式
cell.setCellStyle(style);
}
FileOutputStream fout=new FileOutputStream("我的第一個EXCEL.xls");
//輸出到文件
wb.write(fout);
fout.close();
}
//自定義的方法,插入某個圖片到指定索引的位置
private static void insertImage(HSSFWorkbook wb,HSSFPatriarch pa,byte[] data,int row,int column,int index){
int x1=index*250;
int y1=0;
int x2=x1+255;
int y2=255;
HSSFClientAnchor anchor = new HSSFClientAnchor(x1,y1,x2,y2,(short)column,row,(short)column,row);
anchor.setAnchorType(2);
pa.createPicture(anchor , wb.addPicture(data,HSSFWorkbook.PICTURE_TYPE_JPEG));
}
//從圖片裏面得到字節數組
private static byte[] getImageData(BufferedImage bi){
try{
ByteArrayOutputStream bout=new ByteArrayOutputStream();
ImageIO.write(bi,"PNG",bout);
return bout.toByteArray();
}catch(Exception exe){
exe.printStackTrace();
return null;
}
}
}